... 3, Compreheansive full load design 4, Elimination high voltage Technical Parameters: ModelGY-60AB (Three phase ... with the help of punch press, forging machine or other equipments, for instances, hot extrusion ... of connecting two types of metals of the same material or different materials.1. Welding of ... other metal work pieces, such as golf ball head, cue, brass lock, hardware copper fitting, kitchen ...